The answer to your joint health concerns may be as simple as three letters: MSM. They stand for methyl-sulfonyl-methane, an organic form of the essential mineral sulfur. Sulfur is important because the body needs it to maintain vital tissues like cartilage, ligaments, tendons and skin. Although MSM pills can be used to promote digestive health and aid the body's ability to adapt to stress, the most popular use for MSM appears to be to support joint health. Swanson Ultra MSM tablets deliver 1,500 mg of biologically active MSM for easy assimilation.